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Widgets: Allow WP_Widget subclass instances (objects) to be registered/unregistered in addition to WP_Widget subclass names (strings).

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Allows widgets to be registered which rely on dependency injection. Also will allow for new widget types to be created dynamically (e.g. a Recent Posts widget for each registered post type).

See #35990.
Props mdwheele, PeterRKnight, westonruter.
Fixes #28216.


git-svn-id: https://develop.svn.wordpress.org/trunk@37329 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Weston Ruter
2016-04-29 18:48:27 +00:00
parent ec0614cf17
commit 7ad11aaad8
2 changed files with 87 additions and 6 deletions
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22
src/wp-includes/class-wp-widget-factory.php
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@@ -49,24 +49,34 @@ class WP_Widget_Factory {
* Registers a widget subclass.
*
* @since 2.8.0
* @since 4.6.0 The `$widget` param can also be an instance object of `WP_Widget` instead of just a `WP_Widget` subclass name.
* @access public
*
* @param string $widget_class The name of a WP_Widget subclass.
* @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.
*/
public function register( $widget_class ) {
$this->widgets[$widget_class] = new $widget_class();
public function register( $widget ) {
if ( $widget instanceof WP_Widget ) {
$this->widgets[ spl_object_hash( $widget ) ] = $widget;
} else {
$this->widgets[ $widget ] = new $widget();
}
}
/**
* Un-registers a widget subclass.
*
* @since 2.8.0
* @since 4.6.0 The `$widget` param can also be an instance object of `WP_Widget` instead of just a `WP_Widget` subclass name.
* @access public
*
* @param string $widget_class The name of a WP_Widget subclass.
* @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass.
*/
public function unregister( $widget_class ) {
unset( $this->widgets[ $widget_class ] );
public function unregister( $widget ) {
if ( $widget instanceof WP_Widget ) {
unset( $this->widgets[ spl_object_hash( $widget ) ] );
} else {
unset( $this->widgets[ $widget ] );
}
}
/**